User`s manual

Memory card Memory cards and batteries
MELSEC System Q, Hardware 5 – 3
ATA card memory size indication in special register SD603
When the ATA card is used, the value stored in the special register SD603 indicates the memory
size and differs depending on the manufacturer control number and CPU module type.
When the CPU module is the Universal model QCPU, the ATA card size is stored in SD603 in
units of K bytes.
When the module is not the Universal model QCPU, 8000, 16000, or 32000 is stored in SD603
and the value depends on the manufacturer control number and CPU module type
Memory card
Manufactur-
er control No.
Value stored in special register SD603
High performance model QCPU, Process CPU
and Redundant CPU
Universal model QCPU
Serial No. (first 5 digits)
is 09011 or earlier
Serial No. (first 5 digits)
is 09012 or later
Q2MEM-8MBA "D" or earlier 8000 8000
ATA ca rd size
[kByte]
"E" 16000 8000
"F" or later 32000 16000
Q2MEM-16MBA "D" or earlier 16000 16000
"E" 16000 16000
"F" or later 32000 32000
Q2MEM-32MBA "D" or earlier
32000 32000"E"
"F" or later
Tab. 5-3: Memory size indication in special register SD603